HOME
*





Cornelius Varley
Cornelius Varley, FRSA (21 November 1781 – 2 October 1873) was a British water-colour painter and optical instrument-maker. He invented the graphic telescope and the graphic microscope. Biography Varley was born at Hackney, then a village north of London, on 21 November 1781. He was a younger brother of John Varley, a watercolour painter and astrologer, and a close friend of William Blake. He was educated by his uncle, a scientific instrument maker, and under him acquired a knowledge of the natural sciences. Around 1800, he joined his brother in a tour through Wales, and began the study of art. He was soon engaged in teaching drawing. From 1803 to 1859 he was an occasional exhibitor at the Royal Academy and he also contributed regularly to the displays of the Water-Colour Society, of which, in 1803, he was one of the founders, and of which he continued a member until 1821. He died in Hampstead on 2 October 1873. Works Varley's artistic works consist mainly of carefully fini ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Graphic Telescope
The graphic telescope is a type of camera lucida that has the power of a telescope. It was invented by Cornelius Varley in 1809. It can be used to draw broad landscapes. Graphic telescopes allow the size of the projected image to be adjusted. They can be used separately, or with a portable table to reduce vibrations. They may also be mounted in a vehicle. See also * List of telescope types The following are lists of devices categorized as types of telescopes or devices associated with telescopes. They are broken into major classifications with many variations due to professional, amateur, and commercial sub-types. Telescopes can be ... References External linksCamera lucida and Varley Graphic telescope* * (includes 1840 magazine article on instrument) another

[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Society Of Arts
The Royal Society for the Encouragement of Arts, Manufactures and Commerce (RSA), also known as the Royal Society of Arts, is a London-based organisation committed to finding practical solutions to social challenges. The RSA acronym is used more frequently than the full legal name (The Royal Society for the Encouragement of Arts, Manufactures and Commerce). The RSA's mission expressed in the founding charter was to "embolden enterprise, enlarge science, refine art, improve our manufacturers and extend our commerce", but also of the need to alleviate poverty and secure full employment. On its website, the RSA characterises itself as "an enlightenment organisation committed to finding innovative practical solutions to today's social challenges". Notable past fellows (before 1914, members) include Charles Dickens, Benjamin Franklin, Stephen Hawking, Karl Marx, Adam Smith, Marie Curie, Nelson Mandela, David Attenborough, Judi Dench, William Hogarth, John Diefenbaker, and Tim Be ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Samuel Roger
Samuel ''Šəmūʾēl'', Tiberian: ''Šămūʾēl''; ar, شموئيل or صموئيل '; el, Σαμουήλ ''Samouḗl''; la, Samūēl is a figure who, in the narratives of the Hebrew Bible, plays a key role in the transition from the biblical judges to the United Kingdom of Israel under Saul, and again in the monarchy's transition from Saul to David. He is venerated as a prophet in Judaism, Christianity, and Islam. In addition to his role in the Hebrew scriptures, Samuel is mentioned in Jewish rabbinical literature, in the Christian New Testament, and in the second chapter of the Quran (although Islamic texts do not mention him by name). He is also treated in the fifth through seventh books of '' Antiquities of the Jews'', written by the Jewish scholar Josephus in the first century. He is first called "the Seer" in 1 Samuel 9:9. Biblical account Family Samuel's mother was Hannah and his father was Elkanah. Elkanah lived at Ramathaim in the district of Zuph. His gene ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Conwy
Conwy (, ), previously known in English as Conway, is a walled market town, community and the administrative centre of Conwy County Borough in North Wales. The walled town and castle stand on the west bank of the River Conwy, facing Deganwy on the east bank. The town formerly lay in Gwynedd and prior to that in Caernarfonshire. The community, which also includes Deganwy and Llandudno Junction, had a population of 14,753 at the 2011 census. Although the community of Conwy straddles the River Conwy, for postal purposes the areas on the east bank form part of the post town of Llandudno Junction, with the Conwy post town being confined to west bank of the river. The ward on the west bank of the river had a population of 4,065 at the 2011 census. The resident population of the wider Conwy County Borough was estimated to be 116,200 in an ONS-estimate. The name 'Conwy' derives from the old Welsh words ''cyn'' (chief) and ''gwy'' (water), the river being originally called the 'Cynwy'. ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Caernarvonshire
, HQ= County Hall, Caernarfon , Map= , Image= Flag , Motto= Cadernid Gwynedd (The strength of Gwynedd) , year_start= , Arms= ''Coat of arms of Caernarvonshire County Council'' , Code= CAE , CodeName= Chapman code , Government= Carnarvonshire County Council (1889 - 1926)Caernarvonshire County Council (1926-1974) , PopulationFirst= 66,448Vision of Britain 1831 Census/ref> , PopulationFirstYear= 1831 , AreaFirst= , AreaFirstYear= 1831 , DensityFirst= 0.2/acre , DensityFirstYear= 1831 , PopulationSecond= 125,043 , PopulationSecondYear= 1911 , AreaSecond= , AreaSecondYear= 1911 , DensitySecond= 0.3/acre , DensitySecondYear= 1911 , PopulationLast= 121,767 , PopulationLastYear= 1961 , AreaLast= , AreaLastYear= 1 ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Merionethshire
, HQ= Dolgellau , Government= Merionethshire County Council (1889-1974) , Origin= , Status= , Start= 1284 , End= , Code= MER , CodeName= Chapman code , Replace= Meirionnydd , Motto= Tra môr, tra Meirion (While the sea lasts, so shall Meirionnydd) , Divisions= , DivisionsNames= , DivisionsMap= , Image= Flag of Merionethshire , Map= , Arms= ''Coat of arms of Merionethshire County Council'' , Civic= , PopulationFirst= 35,315Vision of Britain 1831 Census/ref> , PopulationFirstYear= 1831 , AreaFirst= , AreaFirstYear= 1831 , DensityFirst= 0.1/acre , DensityFirstYear= 1831 , PopulationSecond= 45,565 , PopulationSecondYear= 1911 , AreaSecond= , AreaSecondYear= 1911/1961 , DensitySeco ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Dolgelly
Dolgellau () is a town and community in Gwynedd, north-west Wales, lying on the River Wnion, a tributary of the River Mawddach. It was the traditional county town of the historic county of Merionethshire ( cy, Meirionnydd, Sir Feirionnydd) until the county of Gwynedd was created in 1974. Dolgellau is the main base for climbers of Cadair Idris and Mynydd Moel which are visible from the town. Dolgellau is the second largest settlement in southern Gwynedd after Tywyn and includes the community of Penmaenpool. Etymology The name of the town is of uncertain origin, although ' is Welsh for "meadow" or "dale", and ' (soft mutation of ') means "grove" or "spinney", and is common locally in names for farms in sheltered nooks. This would seem to be the most likely derivation, giving the translation "Grove Meadow". It has also been suggested that the name could derive from the word ', meaning "cell", translating therefore as "Meadow of onks'cells", but this seems less likely considerin ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Etching (art)
Etching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in intaglio (incised) in the metal. In modern manufacturing, other chemicals may be used on other types of material. As a method of printmaking, it is, along with engraving, the most important technique for old master prints, and remains in wide use today. In a number of modern variants such as microfabrication etching and photochemical milling it is a crucial technique in much modern technology, including circuit boards. In traditional pure etching, a metal plate (usually of copper, zinc or steel) is covered with a waxy ground which is resistant to acid. The artist then scratches off the ground with a pointed etching needle where the artist wants a line to appear in the finished piece, exposing the bare metal. The échoppe, a tool with a slanted oval section, is also used for "swelling" lines. The plate is then dipped in a bath of ac ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Lithograph
Lithography () is a planographic method of printing originally based on the immiscibility of oil and water. The printing is from a stone (lithographic limestone) or a metal plate with a smooth surface. It was invented in 1796 by the German author and actor Alois Senefelder and was initially used mostly for musical scores and maps.Meggs, Philip B. A History of Graphic Design. (1998) John Wiley & Sons, Inc. p 146 Carter, Rob, Ben Day, Philip Meggs. Typographic Design: Form and Communication, Third Edition. (2002) John Wiley & Sons, Inc. p 11 Lithography can be used to print text or images onto paper or other suitable material. A lithograph is something printed by lithography, but this term is only used for fine art prints and some other, mostly older, types of printed matter, not for those made by modern commercial lithography. Originally, the image to be printed was drawn with a greasy substance, such as oil, fat, or wax onto the surface of a smooth and flat limestone plat ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

North Wales
, area_land_km2 = 6,172 , postal_code_type = Postcode , postal_code = LL, CH, SY , image_map1 = Wales North Wales locator map.svg , map_caption1 = Six principal areas of Wales commonly defined to be North Wales, for policing, fire and rescue, health and regional economy. North Wales ( cy, Gogledd Cymru) is a region of Wales, encompassing its northernmost areas. It borders Mid Wales to the south, England to the east, and the Irish Sea to the north and west. The area is highly mountainous and rural, with Snowdonia National Park ( and the Clwydian Range and Dee Valley (), known for its mountains, waterfalls and trails, wholly within the region. Its population is concentrated in the north-east and northern coastal areas, with significant Welsh-speaking populations in its western and rural areas. North Wales is imprecisely defined, lacking any exact definition or administrative structure. It is commonly defined adminis ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Moel Hebog
Moel Hebog (Welsh for ''Bare Hill of the Hawk'') is a mountain in Snowdonia, north Wales which dominates the view west from the village of Beddgelert. It gives name to a whole range of peaks in the north-western corner of Snowdonia, which include the Nantlle Ridge and Mynydd Mawr. From that side, Moel Hebog has a rocky face with a distinctive pointed summit, although from other sides, it appears more rounded. The exposed rock means that it is often visited by students of geology. Much of the mountain consists of welded, fiamme rich rhyolitic tuff. It is often climbed from Beddgelert and it can be combined with the nearby mountains of Moel yr Ogof and Moel Lefn for a longer walk. This route, however, does involve some easy scrambling. On Moel yr Ogof can be found Owain Glyndŵr's Cave. The view of Moel Hebog and Llyn Gwynant from the north near Snowdon is one of the most photographed in Snowdonia. A late Bronze Age shield was found in a bog near Moel Hebog in 1784. I ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]